Addington stuffed the baby into a plastic garbage bag after giving birth earlier this year in her Rosemont home.
Judge Sharon A. Lueras scheduled Addington's sentencing for Nov. 1. Addington, 25, is facing a sentence of 25 years to life in prison.
According to testimony at trial, Addington had told her boyfriend and her relatives that she had irritable bowel syndrome in the months before she gave birth earlier this year on Jan. 25, and that's why her abdomen began to expand. When her father found her bleeding profusely the morning of the birth, she claimed her injuries resulted from a bowel movement.
Emergency room personnel at Mercy General Hospital determined, however, that her bleeding resulted from having given birth. Authorities said she tried to cover up the birth because her boyfriend did not want to have children. Investigators dispatched to her home in Rosemont found the baby in the plastic bag under Addington's bed.
Addington's lawyer, Jesse Ortiz, argued that she never knew she was pregnant, that she lost consciousness due to blood loss during labor and that she still wasn't aware even after the birth that a baby had been born. Addington's computer history, however, showed that she had conducted internet searches on pregnancy-related subjects as recently as the morning she went into labor.
She gave birth to the seven-pound, eight-ounce girl who was later given the name Hayden Elaine Addington Minton.